/**
 *Copyright (c) 2024 watereyes
 * workflow is licensed under Mulan PubL v2.
 * You can use this software according to the terms and conditions of the Mulan
 * PubL v2.
 * You may obtain a copy of Mulan PubL v2 at:
 *          http://license.coscl.org.cn/MulanPubL-2.0
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PubL v2 for more details.
 */
package com.koron.workflow.api.util;

import java.lang.reflect.InvocationTargetException;

import com.koron.workflow.common.exception.WorkflowException;

public class ExceptionUtils {
	
	public static WorkflowException getWorkflowException(Exception ex) {
		if(ex instanceof WorkflowException) {
			return (WorkflowException) ex;
		}
		Throwable throwable = ex.getCause();
		if(throwable instanceof InvocationTargetException) {
			InvocationTargetException invocationException = (InvocationTargetException) throwable;
			throwable = invocationException.getTargetException();
			if(throwable instanceof WorkflowException) {
				return (WorkflowException) throwable;
			}
			throwable = throwable.getCause();
			if(throwable instanceof WorkflowException) {
				return (WorkflowException) throwable;
			}
		}
		return null;
	}

}
